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Microbiota of Fossil Animals Preserved in Yakut Permafrost

Journal of Earth Science and Engineering 2014年第8期4卷 484-489页

作者： Neustroev Mikhail Petrovich Tarabukina Nadezhda Petrovna Neustroev Mikhail Mikhailovich Fedorova Marfa Pavlovna Stepanova Anna Mikhailovna Parnikova Svetlana Ivanovna Baishev AlekseyAntonovich Laboratory of Veterinary Biotechnology SSI YSRIA (Yakut Scientific Research Institute of Agriculture) Yakutsk 677001 Russia Laboratory of Microbial Preparations Development SSI YSRIA (Yakut Scientific Research Institute of Agricluture) Yakutsk677001 Russia Institute of Natural Sciences NEFU (North-Eastern Federal University) Yakutsk 677001 Russia

Microbiological investigation of the fossil animals preserved in permafrost represents obvious interest for science. Lack of data in this sphere gives even greater importance to any findings giving us opportunity to learn more about remote past of microorganisms. In this respect, preserved remains of fossil are considered as unique biological materials for scientific investigations. Bacillus bacteria strains isolated from the paleomicrobiota of mammoth fauna are not only have high durability （20-30 thousand of years） in permafrost, but are still able to produce biologically active substances. Strains of bacteria of the genus Bacillus, isolated from the tissues of the representatives of the mammoth fauna have strong antagonistic properties to hemolytic streptococci--Streptococcus equi, pathogenic for animals--Salmonella abortus equi, also toxigenic micromycetes genera Aspergillus, Alternuria, Penicillum and fungal pathogens of plant diseases--Botrytis cimeria and Fuzarium oxysporium. The strains of bacteria of the genus Bacillus are not pathogenic to plants and animals, but initially resistant to wide range of antibiotics. Dominance strains of Bacillus bacteria, producing strong bacteriocins in the soft tissues of fossil animals, contributing to their long cryo bio conservation. In addition, bacterial strains of Bacillus subtilis, isolated from paleo microbiota have strong oxidizing properties. Microbiota of fossils preserved in permafrost of Yakutia is of particular interest for microbiology and modem biotechnology.

关键词： Permafrost mammoth fauna microflora Bacillus modem biotechnology.

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